Fatigue life of girders with trapezoidal corrugated webs

Richard Sause, Hassan H. Abbas, Robert G. Driver, Kengo Anami, John W. Fisher

研究成果: Article査読

56 被引用数 (Scopus)

抄録

Fatigue design criteria are necessary to design steel corrugated web girders for highway bridges. The paper presents research on the fatigue life of steel bridge I-girders with trapezoidal web corrugations. Eight large-scale test girders were fabricated from HPS 485W steel and fatigue-tested in four-point bending. The web-to-flange fillet welds were made using semiautomatic gas metal arc welding (GMAW) or robotic GMAW. Fatigue cracks initiated in the tension flange at the web-to-flange fillet weld toe along the inclined web folds and adjacent bend regions, and propagated in the flange. The results demonstrate that steel corrugated web I-girders exhibit a fatigue life that is longer than that of conventional steel I-girders with transverse stiffeners. For design of corrugated web I-girders, the Category B′ design curve of the AASHTO LRFD specifications is recommended for finite life fatigue design calculations, and a value of 96.5 MPa (14.0 ksi) is recommended for the constant amplitude fatigue limit.

本文言語English
論文番号012607QST
ページ(範囲)1070-1078
ページ数9
ジャーナルJournal of Structural Engineering
132
7
DOI
出版ステータスPublished - 2006 7月
外部発表はい

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設
  • 材料科学一般
  • 材料力学
  • 機械工学

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